150 Email Subject Lines: Examples, Best Practices, & More

Let’s cut the fluff — email subject lines are a crucial deciding factor when a subscriber considers opening your email or not. For this reason, leave nothing up to chance. 

Email Subject Line Question & Answer

How long should an email subject line be?

In general, we recommend subject lines be no longer than 60 characters, or 6-8 words. There is some flexibility here, as different email clients have different display limits for subject lines. Take a look at this table for specifics:

Email client Number of characters
Gmail 77
Outlook 60
Yahoo 47
Hotmail 45

150 of the Best Email Subject Lines Examples

Now that you’ve got some background on what makes a great email subject line, it’s time to share some examples! Most of these come from real brands’ marketing campaigns. They’re tried and tested. The rest come from the brains of the marketing experts at Sendinblue. 👩‍🔬

When reading through all these examples, it’s important to keep in mind that what works for one brand may not work for yours. It all depends on your brand personality, how you communicate with your audience, and how they view you.

Welcome email subject lines

To start off, here are some ideas for welcome email subject lines. To welcome new subscribers to your email list, you likely want to give them a friendly introduction to your business. Your subject line can help with this by picking up where you left off at the signup form or confirmation email.

Try thinking of welcome email subject lines as a quick follow-up to thank the new subscriber for joining your list. You may be surprised by how much this can help with maintaining engaged contacts. And the best part, email automation makes welcome messages like this a piece of cake.

  • Welcome to the crew!
  • Thanks for signing up. Here’s how to get started…
  • Today, you made a great decision.
  • It only gets better from here…
  • Nice to meet you, [name]!
  • Are you new here? We’re here to help!
  • Happy to have you in the fam 💖
  • Everything you need to know about [business]

Check out our article about writing effective welcome emails to learn more!

Fear of missing out (FOMO) subject lines

Playing to your audience’s fear of missing out (FOMO) is a powerful subject line tactic. Of course, you don’t want to make anyone feel bad. Moreso, hinting at the idea of exclusivity and the possibility of losing your chance is a convincing way to get subscribers to open emails.

  • Click it or miss it, people: Over 500 styles under $25 is ending! – J.Crew Factory
  • Grab a ride pass before they’re gone – Uber
  • In case you missed these… – Shoes of Prey
  • May’s best books are just too good to miss. – Book of the Month
  • Tonight only: A denim lover’s dream – Guess
  • Starbucks — By Invite Only – Groupon
  • You’re missing out on points. – JetBlue
  • [Name], your home is missing these easy upgrades. – Verizon Wireless
  • By Invitation Only: Exclusive Rewards Inside! – JustFab
  • Mary, Earn double points today only – Jersey Mike’s Subs
  • Don’t let this $5 bonus slip away! – Ibotta
  • Barnstable is in high demand for August – Airbnb
  • Never again sale – InstantBoss Club

Personal & personalized subject lines

Next, we have a list of personal and personalized email subject line examples. As we mentioned above, personalizing your subject lines is a great way to connect with your audience in a more human way.

This doesn’t always have to be using subscribers’ first names. Personal subject lines can also mean reaching out to your audience in a friendly way. Take a look 👀

  • Are you coming? – John Lee Dumas
  • So I’ll pick you up at 7? – Influitive
  • Seriously, who does this? – Ryan Levesque
  • Quick favor? – Jon Morrow
  • Is this you?
  • You’re Invited
  • Thanks for helping us – Revolution Tea
  • Crazy Invitation, I am Going to Buy You Lunch… – James Malinchak
  • I didn’t see your name in the comments!? – Kimra Luna
  • Happy Birthday Mary – Surprise Inside! – Rent the Runway
  • You’ve Changed – UrbanDaddy
  • The Spicer family needs your help, [name]! – Koru Kids
  • You’re eligible, [name]: We’re giving you an opportunity to earn a $100 referral bonus – CapitalOne
  • Fwd: Teresa’s message
  • It’s your Babbelversary, [name]! – Babbel
  • You got a message 💌– Tinder

Sense of urgency subject lines

Another powerful strategy is to create a sense of urgency in your subject lines. Your email recipients are more likely to click open if it’s the last chance to save on a certain item or if there’s limited time to benefit from an offer.

This is not to say you should create a false sense of urgency. Don’t turn your subject line into clickbait by saying “limited time offer!” when in reality you’re just sending your monthly newsletter. 🙅‍♂️

This type of subject line should be saved for real promotions and peak business periods. If all your subject lines look like this, your emails will be more likely to end up in the spam folder. 😔

  • Time is running out… – Opodo
  • Final call to save up to $35 🚨– UberEats
  • Just Dropped: Luxury styles from Balenciaga – Poshmark
  • Our winter sale ends 9th January – IKEA
  • Your discounts expire soon. – Poshmark
  • Hurry, Get Your Tickets to Solo: A Star Wars Story Fan Event! – AMC Theaters
  • Uh-oh, your prescription is expiring – Warby Parker
  • Shirts for $39 ends at midnight – Charles Tyrwhitt

Curiosity-inspiring subject lines

Playing to your audience’s sense of curiosity also helps boost open rates. This tactic is a reliable and sustainable way to engage your audience in the subject line. It’s also easy to use curiosity as a way to preview what’s to come in the rest of the email, which is, after all, the whole point of a subject line! 😉

If you’ve been using curiosity-inspiring subject lines without much success, consider doing some A/B testing to see if there’s an alternative approach that works better for your audience.

  • Etsy: Bring these home…
  • A surprise gift for you! 🎁 – IKEA
  • 9 Disgusting Facts about Thanksgiving – Eat This Not That
  • A faster donkey – The Hustle
  • Why Microsoft just spent $70 billion – M1 Team
  • The secret’s out! – Warby Parker
  • Lyrics: get fluent in the music you love – Spotify
  • What 1,320 therapists are hearing from patients – New York Times
  • The Two Possible Futures of Virtual Reality – Select All
  • Hologram Shorts?! – Chubbies
  • Don’t Open This Email – Manicube
  • Everyone’s gonna ask you about these – Madewell
  • The zodiac signs as frames – Warby Parker
  • Why You Should Keep Your Clothes in the Freezer. – Apartment Therapy
  • Just wait till you see these skirts – LOFT
  • Hey, we’re all doing it. – Warby Parker
  • You need to see this new eye treatment. – Sephora Insider
  • The truth about moving expenses – Zillow
  • This is how much working from home saves you –  LinkedIn
  • A very ~controversial~ opinion – BuzzFeed Books
  • 10 bizarre money habits making Millennials richer – Refinery29
  • Is It  Home In  or  Hone In ? – Merriam Webster
  • 😊 You deserve this – Jackbox Games
  • Free flights to Dubai inside 😍– StudentUniverse

Pain point subject lines

Addressing your customers’ pain points in the subject line tells them you’re here to help. If a brand offers to make a consumer’s life easier in some way, it sends a strong and friendly message.

Think carefully about how your business can help and provide value to your subscribers. In addition, these subject lines lend themselves nicely to segmentation, as it’s likely that different segments of your email list have different pain points. 🤔

  • Where do all these toys go? – IKEA
  • Since we can’t all win the lottery… – Uber
  • Stop wasting time on mindless work – Evernote
  • Monday-Friday Style Simplified – Le Tote
  • Learn a language with only 5 minutes per day – Duolingo
  • Your summer outfit dilemmas SOLVED – J.Crew
  • Beautiful brochures made faster – Adobe Stock
  • No address? No problem. Now Domino’s can deliver to over 150,000 Domino’s Hotspots. – Domino’s
  • Repeat meal syndrome? We understand. – Grubhub
  •  The 30-Second Sales Pitch
  • Don’t think about saving. Save without thinking. – Qapital
  • Struggling with a business decision? I made you a 1-page framework to help. – ByRegina
  • Engaging your prospects can be hard. Video makes it easy. – Vidyard
  • Sit back and let someone else do the cooking – Grubhub
  • Get up to 20% better email deliverability (and a handy checklist)
  • Stop wasting money on ink –  HP
  • Wanted: Cute and affordable fashions – Guess
  • Your all-weather dining solution. – Terrain
  • Get more kitchen space with these easy fixes – IKEA

Question subject lines

Question subject lines are similar to ones inspiring curiosity. ❓ They work well because subscribers want to know the answer to a question, be it in the email or on your website.

  • Vanilla or Chocolate? – Brooklinen
  • What can you afford? – Zillow
  • What backlinks are you getting? – BuzzSumo
  • Where do all these toys go? – IKEA
  • Vanilla or Chocolate? – Brooklinen
  • Do you play enough? – Psychologies
  • Ready for some festival fun? – Sky
  • What did you think? – REI
  • Can you snack your way to better sleep? – Pocket

Holiday/black Friday subject lines

Holidays are a good time to show another side of your brand by embracing a celebratory spirit. As well, holidays tend to be popular shopping times, meaning your email marketing strategy should definitely lean into the festivities.

Christmas subject lines

  • Sleigh your Christmas list with these last-minute gifts
  • Give yourself something you really want this Christmas
  • Let the holiday season begin by treating yourself to something special
  • Put the shine in your holidays with our sparkling ideas
  • Secret Santas know how to hook up with Christmas savings
  • These Christmas decorating tips make Martha Stewart jealous
  • Kick holiday stress to the curb with one-stop shopping for everyone on your list
  • Be the world’s best St. Nick with just one click

Halloween subject lines

  • You deserve a treat, too. – Teavana
  • From Our Ghouls to Yours – Sugarfina
  • Are You Ready To Get Spooky? – Etsy
  • Le freak? C’est chic! – WeTransfer
  • Witch, Please…
  • Have a Fang-tastic Halloween – MeUndies
  • Halloween Hijinks — 20% Off Everything!

Valentine’s Day Subject Lines

  • Ditch the Chocolates and up your Valentine’s Game
  • Where’s the love? In our Valentine’s Shop!
  • Cupid Made Us Do It: Free Shipping For Everyone!
  • Gifts that say  👁️ ❤️ U
  • Psst… Today Is Valentine’s Day
  • The Anti-Valentine’s Day List Is Here
  • Cupid’s Making His Last Round — Order Now!

If you’re looking for more holiday themed subject lines, you’ve come to the right place! Check out our other subject line content:

To-the-point subject lines / offers

This type of subject line is pretty self explanatory. Sometimes, it’s best to be direct and tell your audience what you’ve got to offer at the moment.

  • Start Planning Your Next Trip With 50% Off – Spirit Airlines
  • Hooray, it’s payday! Celebrate with a getaway – Eurostar
  • Our Wool Favorites – Fjällräven
  • [Name], get 15% off your next trip 🎁–
  • Try our favorite recipes – My Spice Sage
  • Gift for monthly donors – Human Rights Campaign
  • Your 2022 bucket list, right this way 👉 – Eurostar
  • $1 a week: Save on insightful reporting. – New York Times
  • [Name], Take 75% Off Your Next Trip – Spirit Airlines
  • Love PayPal? Earn up to $100 to spread the word! – PayPal
  • We want to give you money. – Dollar Shave Club
  • Experience the FW22 Collection at 9 am EST – Woolrich
  • Now Scooping: Coconut Almond Chocolate Chip – Graeter’s Ice Cream
  • Going, Going, Gone – Free Registration – Active Racing

Re-engagement email subject lines

Last but certainly not least, carefully crafted reengagement email subject lines are crucial to any effective email marketing strategy. Re-engaging inactive contacts on a regular basis helps maintain the quality of your email list and saves you money in the long run. (New customers almost always cost more than engaging inactive ones). 🤑

  • Hey, did you forget to open this? – Dollar Shave Club
  • Still Interested in That Deal? – Groupon
  • Come Back This Winter With an Exclusive Deal, [name] – Vail Resorts
  • New things are happening! – ClassPass
  • Can You Believe It’s Been a Month? – The Bouqs Company
  • [Name], people are looking at your LinkedIn profile – LinkedIn
  • Pick up where you left off – Airbnb
  • [Name], you have an undrafted contest entry! – DraftKings
  • We are not gonna Give Up on You! – Vivino
  • We’ve missed you, [name]! Please come back! – Marriott Rewards
  • Hey, forget something? Here’s 20% off. – Bonobos
  • It’s Been A While… – Glassdoor
  • Offering you my personal email – Ugmonk
  • Good News: Your Pin’s price dropped! – Pinterest
  • The price dropped for something in your cart – Target
  • Lemme Teleport You Back to Your Cart. Free Of Charge. – Chubbies Shorts
  • Baby come back!

After 150 Email Subject Line Examples…

… we hope you’ve got a better idea of how to create your own effective email subject lines! As we’ve said before, do not overlook this small yet important piece of content. It serves to grab the reader’s attention and make a first impression for each of your marketing campaigns.

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